#	Chain	Domain ID	Range	Family	Classification
1	4A	e8ugl4A1	4A:1-507	COX1	5038 → 5038.1 → 5038.1.1
2	4B	e8ugl4B1	4B:1-90	COX2_TM	5040 → 5040.1 → 5040.1.1
3	4B	e8ugl4B2	4B:91-229	COX2	3156 → 3156.1 → 3156.1.1
4	4C	e8ugl4C1	4C:1-261	COX3	5039 → 5039.1 → 5039.1.1
5	4D	e8ugl4D1	4D:29-169	COX4	5003 → 5003.1 → 5003.1.1
6	4E	e8ugl4E1	4E:48-152	COX5A	109 → 109.7 → 109.7.1
7	4F	e8ugl4F1	4F:32-129	COX5B	375 → 375.1 → 375.1.8
8	4G	e8ugl4G1	4G:1-97	COX6A	5004 → 5004.1 → 5004.1.1
9	4H	e8ugl4H1	4H:1-86	COX6B	540 → 540.1 → 540.1.1
10	4I	e8ugl4I1	4I:1-75	COX6C	5005 → 5005.1 → 5005.1.1
11	4J	e8ugl4J1	4J:1-80	COX7a	5006 → 5006.1 → 5006.1.1
12	4K	e8ugl4K1	4K:35-80	COX7B	5007 → 5007.1 → 5007.1.1
13	4L	e8ugl4L1	4L:1-63	COX7C	5008 → 5008.1 → 5008.1.1
14	4M	e8ugl4M1	4M:1-70	COX8	5009 → 5009.1 → 5009.1.1

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors